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Web crawlers need to estimate the frequency of changes to Web sites to maintain a current index for Web searches. Assume that the changes to a Web site follow a Poisson process with a mean of 3.5 days.
(a) What is the probability that the next change occurs in less than 2.0 days?
(b) What is the probability that the time until the next change is greater 7.0 days?
(c) What is the time of the next change that is exceeded with probability 90%?
(d) What is the probability that the next change occurs in less than 10.0 days, given that it has not yet occurred after 3.0 days?
select the variable for the number of miles traveled last month. conduct a test of hypothesis to determine whether the
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To test the null hypothesis that the mean waist size for males under 40 years equals 34 inches versus the hypothesis that the mean differs from 34, the following data were collected: 33, 33, 30, 34, 40, 35, 35, 32, 32, 34, 36, 30 calculate the T-v..
What is sampling with replacement, and why it is used?
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Which salesperson should be assigned to each region to minimize total time? Identify the optimal assignments and compute total minimum time.
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